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N700E INSTRUCTION MANUAL
4-2
Input Phase Loss
This function detects a phase loss on the input AC source. Detection is
performed by monitoring the voltage ripple on the DC bus. This voltage
ripple causes heat to the Bus Capacitors which shortens their life.
E20
Inverter Over
Temperature
When the temperature in the main circuit exceeds a pre-defined level the
VFD faults. Usually caused by a cooling fan failure or by a clogged
heatsink or filter.
E21
Ground Fault
This condition occurs when the leakage current to ground exceeds a pre-
defined level. Fault is only detected when the VFD is running.
E14
Inverter Overload
When the current rating of the VFD is exceeded, the internal thermal
overload protection circuit is activated to protect the output transistors.
The time it takes the VFD to trip is dependent upon the carrier frequency,
the load, the ambient temperature and the power rating.
E17
Braking Resistor
Overload
When the BRD exceeds the duty cycle of the braking resistor this fault will
occur. The circuit is designed to calculate and protect the braking resistor
from thermally overheating.
E06
OVS Fail
The OVS output frequency is higher than maximum OVS output frequency
during the setting time when the OVS function is enabled
E02
Fan Fault
(300~750LF Only) The Fan fault is indicated when the fan is not rotated
E33
System Overload
Detection Fault
The output current of the drive is greater than the detection level set for
this feature when it is enabled
E23
System Underload
Detection Fault
The output current of the drive is less than the detection level set for this
feature when it is enabled.
E24
ProfibusDP Fault
(Option)
ProfibusDP optional card only. Host disconnection, or invalid host setting
cause this error
E40
DeviceNet Fault
(Option)
DeviceNet optional card only. Communication cable power loss,
disconnect to host, or invalid host setting cause this error
E41
Other display
Contents
Display
It is displayed when initialization of data is processing
(It is not displayed when initialization of history is processing.)
There is no data available
(Trip history, PID feedback data)
The auto tuning process has successfully completed.